Window ventilator



I mm 22, 193%. W. SCHICKEDANZ 2,137,924

WINDOW VENTILATOR Filed April 12, 1938 In ventor Patented Nov. 22, 1938 UNITED STATES PATENT oFF cE 4 Claims.

This invention relates to new and useful improvements in ventilators especially adapted for use in windows.

The principal object of the present invention is to provide a ventilator which in construction will eliminate drafts.

Another important object of the invention is toprovide a window ventilator in which the air inlets can be readily adjusted to vary the passage of air.

Still another important object of the invention is to provide a ventilator including adjustable air inlet means wherein the ventilator is so constructed that it can be adjusted without r the variable air inlet means interfering.

These and Various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawing:--

Figure 1 represents a side elevational view of the device.

Figure 2 is a vertical sectional View taken substantially on the line 2--2 of Figure 1.

Figure 3 is a fragmentary detailed sectional view taken substantially on the line 3-3 of Figure 1.

Figure 4 is a fragmentary detailed sectional View taken substantially on the line 4-4 of Figure 1.

Figure 5 is a fragmentary detailed sectional view taken substantially on the line 55 of Figure 1.

Figure 6 is a fragmentary detailed sectional view taken substantially on the line 65 of Figure 1.

Referring to the drawing wherein like numerals designate like parts, it can be seen that the ventilator consists broadly of a pair of slidably connected sections generally referred to by numerals 5 and B. The section 5 is provided with a pair of adjustable air inlet structures generally referred to by numerals l and 8, while the section 6 is provided with the variable air inlet structure 9.

Each of the variable air inlet structures 1 and 8 consists of a plurality of rows of fine perforations l arranged concentrically with respect to the pivot member II which secures the rotor l2 in place to the outside of the section 5.

The section is struck to provide a pluraliay of ears l3 bent outwardly and across the outer side of the rotor or disk l2 to serve as guides therefor and hold the same snugly against the outside of the section 5.

Each of the disks I2 is provided with a radially disposed finger M which is disposed iriwardly through the short slot l5 in the sectiont and then laterally against the inside of the section 5.

The rotor or disk I2 is formed with openings 1 which are registrable with the openings l0 there being certain openings in the disk'which will register with the openings l0 when the finger 14 has been moved to one end of the slot l5, and other openings which will register with the openings I0 when the finger I4 is moved to the opposite end of the slot l5,

It will be observed in Figures 1 and 6, that the air inlet structure 9 of the section 6 is constructed somewhat differently from the structures l and 8 in that the section is provided with an outwardly bulged portion defining a shallow pocket I B and the wall of the pocket adjacent the disk I1 is slotted to permit the straight finger I8 to extend into the pocket It. Thus the inner side of the finger I8 is flush with the inner side of the section 6 so that there will be no interference with the section 5 in the event the ventilator must be made so small as to require the inner end of the section 5 to pass over the structure 9.

The structure 9 consists of the perforations IS in the section 6 and the perforations 20 in the rotor or disk I! and in addition, the guide lugs 2| corresponding to the guides I3 of the structures l and 8.

The ends and side edges of the sections 5 and 6 are made of tubular form, the tubular edge portions of the section 6 being of larger cross section than the tubular edges of the section 5 so that these tubular edge portions can be brought into telescopic relation, This is clearly illustrated in Figure 1.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

1. A window ventilator comprising a pair of complementary extensible sections, each of said sections having perforations therein, a rotatable closure on each of the sections, each of the closures being formed with openings registrable with the perforations, each of said closures provided with a lateral finger engageable member, one of the sections being formed with a depression in which the finger engageable member of the corresponding closure is disposed and operative to avoid the other section when the latter is slid over the last-mentioned closure.

2. A window ventilator comprising a pair of complementary extensible sections, each of said sections having perforations therein, a rotatable closure on each of the sections, each of the closures being formed with openings registrable with the perforations, each of said closures provided with a lateral finger engageable member, one of the sections being formed with a depression in which the finger engageable member of the corresponding closure is disposed and operative to avoid the other section when the latter is slide over the last-mentioned closure, the last-mentioned closure being on the side of its section opposite to the depression, the complementary section being formed with a slot through which the finger engageable member projects.

3. A Window ventilator comprising a pair of complementary extensible sections, each of said sections having perforations therein, a rotatable closure on each of the sections, each of the closures being formed with openings registrable with the perforations, each of said closures provided with a lateral finger engageable member, one of the sections being formed with a depression in which the finger engageable member of the corresponding closure is disposed and operative to avoid the other section when the latter is slid over the last-mentioned closure, the last-mentioned closure being on the side of its section opposite to the depression, the complementary section being formed with a slot through which the finger engageable member projects, said slot being located in one wall of the depression.

4. A Window ventilator comprising a pair of complementary extensible sections, each of said sections having perforations therein, a rotatable closure on each of the sections, each of the 010- sures being formed with openings registrable with the perforations, each of said closures provided with a lateral finger engageable member, one of the sections being formed with a depression in which the finger engageable member of the corresponding closure is disposed and operative to avoid the other section when the latter is slid over the last-mentioned closure, said sections being formed with slots through which the finger engageable members project, said slots being of such extent as to afford registration of the perforations when the finger engageable members have been moved to either end of the slot and to afford unregistration when the finger engageable members have been moved to a mid-point between the ends of the slots.

WILLIAM SCHICKEDANZ. 

